Sectional wheel.



B.'B. FITZGERALD.

SEGTIONAL WHEEL.

APPLIGATIONYIILED Arms, 1910.

Patented Mar. 21, 1911.

nventor Attorney;

Wi esses EDMOND B. FITZGERALD, OF ROSEDALE, MISSISSIPPI.

SECTIONAL WHEEL.

Specification of Letters Patent.

Patented Mar. 21, 1911.

Application filed August 8, 1910. Serial No. 576,135.

ALI), a citizen of the United States, residing at Rosedale, in thecounty of Bolivar and State of Mississippi, have invented a new anduseful Sectional lVheel, of which the following is a specification.

It is the object of the present invention. to provide an improvedactuating device for the valve plate of a seeder of that gen-1 eral typeshown and described in my copending application, Serial No. 531,679,;'

filed December 6, 1909. Such seeders embody usually, a trip arm havingoperative connection with the valve disk and such trip arm is to besuccessively engaged by suitably spaced abutments upon a rotatingelement or some other actuating means.

The present invention relates to an improvement in the construction ofsuch actuating means, and the device of this invention is embodied in apair of spaced connected disks mounted upon a rotating element, such asthe axle of the machine, the disks receiving between them segmentsformed with teeth or abutments arranged to engage successively with atrip arm which is mounted to rock and has connection with one of thevalve plates.

In the accompanying drawings, Figure 1 is a view in side elevation ofthe actuating means for the trip arm of a seeder of the type mentioned,2 is a transverse sectional view through the said means, Fig. 3 is asectional view in a plane at right angles to the plane of Fig. 2, andFig. 4: is a view in side elevation of one of the toothed segments ofthe device.

The device of the present invention, as before stated, is embodied in atrip wheel which is mounted upon the axle of the ma chine, and the saidaxle is indicated in the drawings by the numeral 5. In mounting thedevice upon the axle, the hub 6 is keyed or otherwise secured upon theaxle for rotation therewith and is formed midway of its ends with acircumferential flange 7 which is toothed, as at 8, peripherally,whereby to afford a ratchet. The trip wheel embodies two disks which arefitted upon the hub in spaced relation and each of these disks is formedupon that face opposing the other disk, with a raised portion 10,substantially annular in form and concentric with respect to the axle 5and formed at diametrically opposite points with notches 11 for apurpose to be explained. Each disk has an axial opening'13 whichreceives the hub 6 in such manner to permit of rotation of the disksupon the said hub independently thereof. It will be observed from aninspection of Fig. 2 of the drawings that when the disks are assembledand connected upon the hub, their raised portions 10 will register or bein contact and consequently what might be termed an annular flange isafforded between the two disks.

A pawl 15 is secured between the abutting raised portions 10 of thedisks and rests at its free end in engagement with the toothed peripheryof the flange 7 of the hub and cooperates with the teeth of the saidflange to insure rotation of the disks with the shaft when the shaft isrotated forwardly, but obviates such movement when the shaft is rotatedbackwardly.

As heretofore stated, the segments are disposed between the disks andcarry teeth or abutments which cooperate with the rocking arm of theseeder mechanism in connection with which the actuating means hereshown, is employed and one of these segments is clearly shown in Fig. 4:of the drawings and is indicated by the numeral 16. It will be observedthat the segment 16' is semi-annular in form and integral with itsconcave edge is formed an ear 17 of a shape to fit in one or the otherof the notches 11 and through this ear is formed an opening whichregisters with an opening 19 formed through each of the disks 9 in thebounds of the concave edge of the notches 11 in the raised portion 10thereof. With the two segments assembled between the disks with theirends abutting as illustrated in Fig. 1 of the drawings, securing boltsor screws 19 are secured through the registering openings 18 and 19 andthe said segments are in this manner firmly held in place. It will beobserved that the teeth heretofore mentioned as constituting a part ofeach segment, and indicated in the drawings by the numeral 20, are twoin number upon each segment here illustrated and are formed upon theouter or convex edge of the segment but it will be readily understoodthat while this number of teeth, they being equidistantly spaced, willresult in a predetermined quantity of seed being dropped at eachmovement through 90 of the actuating wheel as an entirety, andconsequently a dropping of a predetermined quantity of seed a set of thesegments 16 so that they nay be interchanged as desired.

What is claimed is Y '1. Inan actuating device of the class described, apair of disks each formed upon 1 one face with a raised portion havingnotches, thersaid disks each having an opening located within the notchthe disks being disposed with theirraised portions abutting, twosegments fitted between the disks and having ears seating inthe notchesin the raised portions of the disks, and bolts secured throughtheopenings in the-disks and the ears of the segments;

2'. In an actuating device of the class described, a pair of disks eachformed upon one face with a raised portion having notches, the saiddisks each having an opening located within the notch, the disks beingdisposed with their raised portions abutting, two segments fittedbetween the disks and having ears seating in the notches in the raisedportions of the disks, bolts secured throughthe openings in the disksand the ears of the segments, a ratchet arranged axially of the disksand rotatable independently thereof, the said raised portions of' thedisks being annular in form and housing the said'ratchet, and a pawlcarried between the disks within the raised portions thereof andcooperating with said ratchet.

In testimony that I claimthe foregoing as my own, I have hereto affixedmy-signature in the presence of two witnesses.

EDMOND B. FITZGERALD.

IVitnesses I H. D. CI-iANNY, JNO. CA'lCI-IINGS.

Copies of this patent may be obtained for five cents each, by addressingthe 5 Commissioner of Patents, Washington, D. C.

